@article{ref1,
title="Mechanical considerations of the hip joint",
journal="Archives of surgery (1960)",
year="1973",
author="Johnston, R. C.",
volume="107",
number="3",
pages="411-417",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0004-0010",
doi="",
url="http://dx.doi.org/"
}